/*
 * @Description: 
 * @version: 1.0
 * @Author: ziwei
 * @Date: 2021-08-22 09:46:24
 * @LastEditors: ziwei
 * @LastEditTime: 2021-08-22 11:40:48
 */
import './index.css';
document.write('hello');
console.log(process.env.NODE_ENV);

function readonly(target, key, descriptor) {

}

class Circle {
    @readonly PI = 3.14;
}
let cl = new Circle();
cl.PI = 3.15;
console.log(cl);